def main():
    s=int(input())
    if(s<600):
        print(8)
    elif(s<800):
        print(7)
    elif(s<1000):
        print(6)
    elif(s<1200):
        print(5)
    elif(s<1400):
        print(4)
    elif(s<1600):
        print(3)
    elif(s<1800):
        print(2)
    elif(s<2000):
        print(1)

main() def main():
    s=int(input())
    if(s<600):
        print(8)
    elif(s<800):
        print(7)
    elif(s<1000):
        print(6)
    elif(s<1200):
        print(5)
    elif(s<1400):
        print(4)
    elif(s<1600):
        print(3)
    elif(s<1800):
        print(2)
    elif(s<2000):
        print(1) main s=int(input()) s int(input()) int input() input if(s<600):
        print(8)
    elif(s<800):
        print(7)
    elif(s<1000):
        print(6)
    elif(s<1200):
        print(5)
    elif(s<1400):
        print(4)
    elif(s<1600):
        print(3)
    elif(s<1800):
        print(2)
    elif(s<2000):
        print(1) s<600 s 600 print(8) print 8 elif(s<800):
        print(7)
     s<800 s 800 print(7) print 7 elif(s<1000):
        print(6)
     s<1000 s 1000 print(6) print 6 elif(s<1200):
        print(5)
     s<1200 s 1200 print(5) print 5 elif(s<1400):
        print(4)
     s<1400 s 1400 print(4) print 4 elif(s<1600):
        print(3)
     s<1600 s 1600 print(3) print 3 elif(s<1800):
        print(2)
     s<1800 s 1800 print(2) print 2 elif(s<2000):
        print(1) s<2000 s 2000 print(1) print 1 main() main def main():
    s=int(input())
    if(s<600):
        print(8)
    elif(s<800):
        print(7)
    elif(s<1000):
        print(6)
    elif(s<1200):
        print(5)
    elif(s<1400):
        print(4)
    elif(s<1600):
        print(3)
    elif(s<1800):
        print(2)
    elif(s<2000):
        print(1) def main():
    s=int(input())
    if(s<600):
        print(8)
    elif(s<800):
        print(7)
    elif(s<1000):
        print(6)
    elif(s<1200):
        print(5)
    elif(s<1400):
        print(4)
    elif(s<1600):
        print(3)
    elif(s<1800):
        print(2)
    elif(s<2000):
        print(1) main
def main():
    s=int(input())
    if(s<600):
        print(8)
    elif(s<800):
        print(7)
    elif(s<1000):
        print(6)
    elif(s<1200):
        print(5)
    elif(s<1400):
        print(4)
    elif(s<1600):
        print(3)
    elif(s<1800):
        print(2)
    elif(s<2000):
        print(1)

main()
